A client is receiving parenteral nutrition (PN) solution at 60 mL/hr by means of infusion pump through a subclavian central line. The client calls the nurse and complains of difficulty breathing and chest pain. The nurse notes that the client's pulse rate is increased, the blood pressure has dropped, and oxygen saturation is 89%. Use the number 1 to denote the first action and the number 4 the last.
A) Placing the client in lateral Trendelenburg position on the left side
B) Clamping the PN infusion catheter
C) Obtaining an electrocardiogram (ECG)
D) Notifying the physician